X-Rite ColorMunki?

It seems that cheaper IPS panels now are available, but the thing to look for is does it have 8 bit or better colour, some cheat with 6 bits, most TN panels are 6 bit and have much more restricted colour gamut than a good IPS panel.

After reading a number of LCD reviews at tftcentral.co.uk, I think it's safe to conclude that a vast majority of "affordable" LCDs are physically 6bit + dithering... cheaper IPS panels included. Those 6-bit IPS panels are still vastly superior to the average TN junk.